Wall Mount Dome Type Signal Light with Electrical Horn Siren Buzzer 105dB, Electric Horn 100-115dB Combination of warning light and horn allow for both visual and audible signal transmission at once Flashing rate : 60-80 flashes/min(Built-in Steady-Flash selection switch) Appropriate sound tones can be chosen depending on the various working environment among various available sound tones Sound tone selector and volume controller in front of the device allows for convenient use SDcard type allows user defined sound tone Built-in 30 sound tones, Support Binary and Bit input modes Bit input mode consists of 5 sound types with 6 groups. Choose one of the groups to play 5 sounds.(MP3 does not support group) MP3 support(QAD100H/ QAD125H) Materials : Lens - PC, Housing - ABS Ambient operating temperature : -30°C to +50°C Protection rating : IP65 Certificates : CE, UL Compliant Compliant with RoHS directive